TCGrader's AI has graded 4 copies of Rayquaza-EX (Roaring Skies), averaging 8.4 overall. Only 25% scored 9 or higher, so genuinely mint copies of this card are scarce. A grade 10 copy sells for around $74.00 vs $73.01 raw. That's a modest premium, so grading only pays off for near-perfect copies.